| 7306.40.50 | 15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold-drawn | kg | | | |
| 7306.40.50 | 40 | Other, cold-drawn or cold-rolled (cold- reduced): | | | | |
| 7306.50.50 | 10 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold-drawn | kg | | | |
| 7306.50.50 | 30 | Other, cold-drawn or cold-rolled (cold- reduced) | kg | | | |
| 7308 | | Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: | | | | |
| 7308.30 | | Doors, windows and their frames and thresholds for doors: | | | | |
| 7308.30.50 | 15 | Windows and their frames | kg | | | |
| 7308.90.30 | 00 | Columns, pillars, posts, beams, girders and similar structural units: | | | | |
| 7308.90.70 | 00 | Steel grating | kg | Free | | 45% |
| 7308.90.95 | 30 | Sheet-metal roofing, siding, flooring and roof drainage equipment | kg | | | |
| 7308.90.95 | 60 | Architectural and ornamental work | kg | | | |
| 7311.00.00 | 30 | Seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number | No. kg | | | |
| 7312 | | Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated: | | | | |
| 7312.10 | | Stranded wire, ropes and cables: | | | | |
| 7312.10.05 | 00 | Stranded wire: | | | | |
| 7312.10.10 | 50 | Other, stranded wire having a lay or twist of not more than 1 revolution for a length equal to the strand diameter multiplied by 8.5 | kg | | | |
| 7312.10.30 | 20 | Other, stranded wire having a lay or twist of not more than 1 revolution for a length equal to the strand diameter multiplied by 8.5 | kg | | | |
| 7312.10.30 | 45 | Of brass plated wire | kg | | | |
| 7312.10.30 | 65 | ACSR core strand | kg | | | |
| 7312.10.50 | 00 | Ropes, cables and cordage other than stranded wire: | | | | |
| 7312.10.80 | 00 | Of brass plated wire | kg | Free | | 35% |
| 7316.00.00 | 00 | Anchors, grapnels and parts thereof, of iron or steel | X | Free | | 25% |
| 7317.00 | | Nails, tacks, drawing pins, corrugated nails, staples (other than those of heading 8305) and similar articles, of iron or steel, whether or not with heads of other material, but excluding such articles with heads of copper: | | | | |
| 7318.15.20 | 20 | Track bolts | kg | | | |
| 7318.15.20 | 30 | Structural bolts | kg | | | |
